def query_leds(control_file=None):
"""
List all LED types supported.
Args:
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
Returns:
List of available `nuc_wmi.LED_TYPE` indexes.
"""
query_leds_byte_list = [METHOD_ID, QUERY_TYPE.index('query_leds')]
write_control_file(query_leds_byte_list, control_file=control_file)
# Bitmap [0:7], [8:15], [16:23]
(error_code, led_type_bitmap_1, led_type_bitmap_2,
led_type_bitmap_3) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(
RETURN_ERROR.get(error_code, 'Error (Unknown NUC WMI error code)'))
led_type_bitmaps = [
led_type_bitmap_3, led_type_bitmap_2, led_type_bitmap_1
]
led_type_bitmap = byte_list_to_bitmap(led_type_bitmaps)[::-1]
return [
index for index, bit in enumerate(led_type_bitmap)
if int(bit) and index < len(LED_TYPE['new'])
]
def get_led_indicator_option(led_type, control_file=None):
"""
Get the current indicator option for the LED type.
Args:
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
led_type: The LED type for which to retrieve the current indicator option.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
Returns:
`nuc_wmi.LED_INDICATOR_OPTION` index of the current LED indicator option.
"""
get_led_indicator_option_byte_list = [
METHOD_ID,
GET_LED_TYPE.index('get_led_indicator_option'),
led_type
]
write_control_file(get_led_indicator_option_byte_list, control_file=control_file)
(
error_code,
led_indicator_option,
reserved_byte_1,
reserved_byte_2
) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(RETURN_ERROR[error_code])
return led_indicator_option
def set_led_indicator_option(led_type, led_indicator_option, control_file=None):
"""
Set the LED indicator option for the specified LED type,
Args:
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
led_indicator_option: The LED indicator option to set for the LED type.
led_type: The LED type for which to set the LED indicator option.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
"""
set_led_indicator_option_byte_list = [METHOD_ID, led_type, led_indicator_option]
write_control_file(set_led_indicator_option_byte_list, control_file=control_file)
(
error_code,
reserved_byte_1,
reserved_byte_2,
reserved_byte_3
) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(RETURN_ERROR.get(error_code, 'Error (Unknown NUC WMI error code)'))
def wmi_interface_spec_compliance_version(control_file=None):
"""
Returns the version for the WMI interface spec compliance.
Args:
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
Returns:
Tuple of two bytes representing the version number.
"""
wmi_version_byte_list = [
METHOD_ID,
VERSION_TYPE.index('wmi_interface_spec_compliance_version')
]
write_control_file(wmi_version_byte_list, control_file=control_file)
(error_code, version_byte_1, version_byte_2,
reserved_byte) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(
RETURN_ERROR.get(error_code, 'Error (Unknown NUC WMI error code)'))
return tuple([version_byte_2, version_byte_1])
def get_led(led, control_file=None):
"""
Get legacy LED state with regard to brightness, frequency, and color.
Args:
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
led: Selects the legacy LED to get the state for.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
Returns:
Tuple of legacy brightness, frequency, and color of the select LED.
"""
get_led_byte_list = [METHOD_ID, led]
write_control_file(get_led_byte_list, control_file=control_file)
(
error_code,
brightness,
frequency,
color
) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(RETURN_ERROR.get(error_code, 'Error (Unknown NUC WMI error code)'))
return tuple([brightness, frequency, color])
def query_led_control_items(led_type, led_indicator_option, control_file=None):
"""
Query the LED control items for the LED indicator option of the LED type.
Args:
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
led_indicator_option: The LED indicator option to use for the LED type when querying for the LED control items.
led_type: The LED type for which to query the LED control items.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
Returns:
List of available `nuc_wmi.CONTROL_ITEM` indexes for the specified LED type and LED indicator option.
"""
led_color_type = query_led_color_type(led_type, control_file=control_file)
query_led_control_item_byte_list = [
METHOD_ID,
QUERY_TYPE.index('query_led_control_items'), led_type,
led_indicator_option
]
write_control_file(query_led_control_item_byte_list,
control_file=control_file)
# Bitmap [0:7], [8:15], [16:23]
(error_code, led_control_item_bitmap_1, led_control_item_bitmap_2,
led_control_item_bitmap_3) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(
RETURN_ERROR.get(error_code, 'Error (Unknown NUC WMI error code)'))
led_control_item_bitmaps = [
led_control_item_bitmap_3, led_control_item_bitmap_2,
led_control_item_bitmap_1
]
led_control_item_bitmap = byte_list_to_bitmap(
led_control_item_bitmaps)[::-1]
if led_indicator_option == LED_INDICATOR_OPTION_DISABLED or \
CONTROL_ITEM[led_indicator_option][led_color_type] is None:
return []
return [
index for index, bit in enumerate(led_control_item_bitmap) if int(bit)
and index < len(CONTROL_ITEM[led_indicator_option][led_color_type])
]
def switch_led_type(led_color_group, control_file=None):
"""
Switches the LED color group type.
Args:
led_color_group: The LED color group type to set.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
"""
switch_led_byte_list = [METHOD_ID, led_color_group]
write_control_file(switch_led_byte_list, control_file=control_file)
(error_code, reserved_byte_1, reserved_byte_2,
reserved_byte_3) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(
RETURN_ERROR.get(error_code, 'Error (Unknown NUC WMI error code)'))
def get_led_control_item(led_type, led_indicator_option, control_item, control_file=None):
"""
Get the current control item value for the control item of the indicator option for the specified LED type.
Args:
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
control_item: The control item of the specified LED type indicator option for which to retrieve the value.
led_indicator_option: The indicator option for the specified LED type for which to retrieve the current control
item value.
led_type: The LED type for which to retrieve the current control item.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
Returns:
`nuc_wmi.CONTROL_ITEM` value for the control item of the indicator option for the specified LED type.
"""
get_led_control_item_byte_list = [
METHOD_ID,
GET_LED_TYPE.index('get_led_control_item'),
led_type,
led_indicator_option,
control_item
]
write_control_file(get_led_control_item_byte_list, control_file=control_file)
(
error_code,
control_item_value,
reserved_byte_1,
reserved_byte_2
) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(RETURN_ERROR.get(error_code, 'Error (Unknown NUC WMI error code)'))
return control_item_value
def save_led_config(control_file=None):
"""
Send a save LED configuration LED app notification.
Args:
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
"""
notification_byte_list = [
METHOD_ID, NOTIFICATION_TYPE.index('save_led_config')
]
write_control_file(notification_byte_list, control_file=control_file)
(error_code, reserved_byte_1, reserved_byte_2,
reserved_byte_3) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(
RETURN_ERROR.get(error_code, 'Error (Unknown NUC WMI error code)'))
def query_led_color_type(led_type, control_file=None):
"""
Query the LED color type for the LED type.
Args:
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
led_type: The LED type for which to query the LED color type.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
Returns:
`nuc_wmi.LED_COLOR_TYPE` index of current LED color type.
"""
query_led_color_byte_list = [
METHOD_ID,
QUERY_TYPE.index('query_led_color_type'), led_type
]
write_control_file(query_led_color_byte_list, control_file=control_file)
# Bitmap [0:7], [8:15], [16:23]
(error_code, led_color_type_bitmap_1, led_color_type_bitmap_2,
led_color_type_bitmap_3) = read_control_file(control_file=control_file)
if error_code > 0:
raise NucWmiError(
RETURN_ERROR.get(error_code, 'Error (Unknown NUC WMI error code)'))
led_color_type_bitmaps = [
led_color_type_bitmap_3, led_color_type_bitmap_2,
led_color_type_bitmap_1
]
led_color_type_bitmap = byte_list_to_bitmap(led_color_type_bitmaps)
return int(led_color_type_bitmap, 2)
def set_led(led, brightness, frequency, color, control_file=None):
"""
Set LED state with regard to brightness, frequency, and color.
Args:
brightness: Controls the brightness level of the LED.
color: Sets legacy RGB-color for LED.
control_file: Sets the control file to use if provided, otherwise `nuc_wmi.CONTROL_FILE` is used.
frequency: Sets the legacy LED frequency.
led: Selects the legacy LED to set a state for.
Exceptions:
Raises `nuc_wmi.NucWmiError` exception if kernel module returns an error code,
or if `read_control_file` or `write_control_file` raise an exception.
"""
set_led_byte_list = [METHOD_ID, led, brightness, frequency, color]
write_control_file(set_led_byte_list, control_file=control_file)
(brightness_error, frequency_error, color_error,
reserved_byte) = read_control_file(control_file=control_file)
if brightness_error > 0:
raise NucWmiError(
RETURN_ERROR.get(brightness_error,
'Error (Unknown NUC WMI error code)'))
if frequency_error > 0:
raise NucWmiError(
RETURN_ERROR.get(frequency_error,
'Error (Unknown NUC WMI error code)'))
if color_error > 0:
raise NucWmiError(
RETURN_ERROR.get(color_error,
'Error (Unknown NUC WMI error code)'))
def test_write_control_file(self):
"""
Tests that `write_control_file` returns the expected exceptions, return values, or outputs.
"""
# Branch 1: Tests that `write_control_file` raises the expected exception when `nuc_wmi.CONTROL_FILE` doesnt
# exist. Assumes we are testing on a system without the driver installed.
with self.assertRaises((IOError, OSError)) as err:
read_control_file()
# Reset
with open(self.control_file.name, 'w') as fout:
fout.truncate()
# Branch 2, 3: Tests that the number of bytes written to the control file are padded to 5 bytes, and that
# integer byte list is properly written to the control file.
byte_list = [0x0D, 0x0E, 0x0A, 0x0D]
expected_byte_string='0d 0e 0a 0d 00'
write_control_file(byte_list, control_file=self.control_file.name)
with open(self.control_file.name, 'r') as fin:
written_byte_string = fin.read()
self.assertEqual(expected_byte_string, written_byte_string)
# Reset
with open(self.control_file.name, 'w') as fout:
fout.truncate()
# Branch 4: Tests that an string byte list is properly written to the control file
byte_list = [str(0x0D), str(0x0E), str(0x0A), str(0x0D)]
expected_byte_string='0d 0e 0a 0d 00'
write_control_file(byte_list, control_file=self.control_file.name)
with open(self.control_file.name, 'r') as fin:
written_byte_string = fin.read()
self.assertEqual(expected_byte_string, written_byte_string)
# Reset
with open(self.control_file.name, 'w') as fout:
fout.truncate()
# Branch 5: Test that byte strings outside of the 0-255 value raise an exception
byte_list = [0xFFF]
with self.assertRaises(NucWmiError) as err:
write_control_file(byte_list, control_file=self.control_file.name)
self.assertEqual(str(err.exception), 'Error (NUC LED byte values must be 0-255)')